TXS2SA-4.5V-X Equivalent & Substitute Parts

Part Overview

The TXS2SA-4.5V-X is a general purpose relay manufactured by Panasonic Electric Works, configured as a DPDT (2 Form C) surface mount component with a 4.5VDC coil voltage and 1A contact rating. This relay is classified as Active product status and is fully sealed with silver and gold contact materials. Substitute parts are identified when packaging configurations differ or when inventory availability requires alternative sourcing while maintaining identical electrical and mechanical specifications.

Key Parameters

Parameter	Value
Manufacturer	Panasonic Electric Works
Series	TX-S
Coil Voltage	4.5VDC
Contact Form	DPDT (2 Form C)
Contact Rating (Current)	1 A
Switching Voltage (Max)	110VDC
Coil Current	11.1 mA
Coil Type	Non Latching
Mounting Type	Surface Mount
Termination Style	Gull Wing
Seal Rating	Sealed - Fully
Operating Temperature Range	-40°C ~ 70°C
Contact Material	Silver (Ag), Gold (Au)
Coil Resistance	405 Ohms
Must Operate Voltage	3.6 VDC
Must Release Voltage	0.45 VDC
Operate Time	5 ms
Release Time	5 ms

Substitute Part Grouping Explanation

Substitute parts for the TXS2SA-4.5V-X are identified based on strict electrical and mechanical parameter matching within the TX-S series. The substitution criteria are:

Identical coil voltage: 4.5VDC
Identical contact form: DPDT (2 Form C)
Identical contact rating: 1 A
Identical switching voltage: 110VDC maximum
Identical coil current: 11.1 mA
Identical coil type: Non Latching
Identical mounting type: Surface Mount
Identical termination style: Gull Wing
Identical seal rating: Sealed - Fully
Identical operating temperature range: -40°C ~ 70°C
Identical contact material: Silver (Ag), Gold (Au)
Identical coil resistance: 405 Ohms
Identical must operate voltage: 3.6 VDC
Identical must release voltage: 0.45 VDC
Identical operate and release times: 5 ms each

Variations in packaging configuration (Tape & Reel versus Cut Tape & Digi-Reel) do not affect electrical or mechanical compatibility and are therefore permitted substitutions.

Parameter Comparison

Parameter	TXS2SA-4.5V-X	TXS2SA-4.5V-Z	TXS2SS-4.5V-Z
Manufacturer	Panasonic Electric Works	Panasonic Electric Works	Panasonic Electric Works
Series	TX-S	TX-S	TX-S
Coil Voltage	4.5VDC	4.5VDC	4.5VDC
Contact Form	DPDT (2 Form C)	DPDT (2 Form C)	DPDT (2 Form C)
Contact Rating (Current)	1 A	1 A	1 A
Switching Voltage (Max)	110VDC	110VDC	110VDC
Coil Current	11.1 mA	11.1 mA	11.1 mA
Coil Type	Non Latching	Non Latching	Non Latching
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Termination Style	Gull Wing	Gull Wing	Gull Wing
Seal Rating	Sealed - Fully	Sealed - Fully	Sealed - Fully
Operating Temperature Range	-40°C ~ 70°C	-40°C ~ 70°C	-40°C ~ 70°C
Contact Material	Silver (Ag), Gold (Au)	Silver (Ag), Gold (Au)	Silver (Ag), Gold (Au)
Coil Resistance	405 Ohms	405 Ohms	405 Ohms
Must Operate Voltage	3.6 VDC	3.6 VDC	3.6 VDC
Must Release Voltage	0.45 VDC	0.45 VDC	0.45 VDC
Operate Time	5 ms	5 ms	5 ms
Release Time	5 ms	5 ms	5 ms
Packaging	Tape & Reel (TR)	Cut Tape (CT) & Digi-Reel®	Tape & Reel (TR)
Product Status	Active	Active	Active
RoHS Status	RoHS Compliant	ROHS3 Compliant	RoHS Compliant

Engineering Selection Recommendations

All three part numbers—TXS2SA-4.5V-X, TXS2SA-4.5V-Z, and TXS2SS-4.5V-Z—are Active status products from Panasonic Electric Works with identical electrical and mechanical specifications. Selection between these parts is determined by packaging requirements and compliance certifications.

TXS2SA-4.5V-X and TXS2SS-4.5V-Z are supplied in Tape & Reel (TR) packaging. TXS2SA-4.5V-Z is supplied in Cut Tape (CT) & Digi-Reel® packaging. All three parts meet RoHS compliance requirements. TXS2SA-4.5V-Z carries ROHS3 Compliant certification and REACH Unaffected status, providing additional regulatory documentation for applications requiring enhanced compliance tracking.

Frequently Asked Questions (FAQ)

Q: Can TXS2SA-4.5V-Z replace TXS2SA-4.5V-X in a circuit design?

A: Yes. Both parts have identical electrical specifications, coil voltage, contact ratings, switching characteristics, and operating temperature ranges. The difference is packaging format: TXS2SA-4.5V-X uses Tape & Reel (TR) while TXS2SA-4.5V-Z uses Cut Tape (CT) & Digi-Reel®. Electrical and mechanical compatibility is complete.

Q: What is the difference between TXS2SA-4.5V-Z and TXS2SS-4.5V-Z?

A: Both parts are electrically and mechanically identical with matching coil voltage, contact form, current ratings, and operating characteristics. The difference is packaging: TXS2SA-4.5V-Z uses Cut Tape (CT) & Digi-Reel® while TXS2SS-4.5V-Z uses Tape & Reel (TR). Additionally, TXS2SA-4.5V-Z carries ROHS3 Compliant and REACH Unaffected certifications.

Q: Are all three parts suitable for the same PCB assembly process?

A: Packaging format affects assembly handling. Tape & Reel (TR) packaging is standard for automated pick-and-place equipment. Cut Tape (CT) & Digi-Reel® packaging is suitable for lower-volume or mixed-component assembly. All three parts use identical Gull Wing termination and Surface Mount configuration, making them compatible with standard SMT assembly processes when packaging format matches equipment capability.

Q: What compliance certifications apply to these parts?

A: All three parts are RoHS Compliant. TXS2SA-4.5V-Z additionally carries ROHS3 Compliant certification and REACH Unaffected status. All parts are classified under ECCN EAR99 and HTSUS 8536.41.0020.

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